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  • Design
  • Technical
  • Non-classified

Double Balancier

Greubel Forsey 2018

Men's

Easy is never an option for Greubel Forsey. In 2009, the two watchmakers from La Chaux-de-Fonds presented a prototype version of their inclined Double Balancier, whose two regulating organs were positioned one above the other. They came to this year's SIHH with a redeveloped version. Now occupying distinct and separate planes, the two balance wheels give this watch an even more theatrical construction. They are connected by a Constant Spherical Differential which averages differences in their rates. A rotation indicator fitted to the differential makes one complete turn in four minutes. Incredibly, the minute track, numerals, markers and power-reserve indication are all in champlevé Grand Feu enamel.

Function

  • Function
    Hours, Minutes, Small seconds

Complications

  • Display
    Power-reserve indicator
  • Other complication
    See presentation text

Movement

  • Energy supply
    Manual-winding
  • N° of components
    285
  • N° of jewels
    50
  • Power reserve
    72 hours
  • Vibrations
    21600
  • Form
    Round
  • Height/thickness
    8.15 mm
  • Diameter
    36.40 mm

Case

  • Form
    Round
  • Material
    18k 5N red gold
  • Height/thickness
    13.38 mm
  • Diameter
    43.00 mm
  • Back
    Sapphire
  • Water-resistance
    30 m

Dial

  • Material
    Gold
  • Colour
    Black / anthracite

Strap

  • Material
    Alligator
  • Colour
    Black
  • Fastening
    Folding clasp